Medium
What does this code display?
<?php
echo $a?->b() ?? 'test';
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4
Use the match expression in PHP to print a string.5
PHP function with named and positional arguments.7
PHP code that throws an error.4
Attributes are metadata that can be added to classes, properties, constants or methods.4
Which function signature is valid?4
Is this function signature valid?
```php
<?php
interface Demo
{
public function bar(): ?mixed;
}
```3
PHP code that throws a TypeError